Milking-machine.



M. H. DANIELS. MILKING MACHINE.

APPLIUATION FILED MAY 22, 190s.

@$3,449. Patented JanE 5, i909 2 SHEETS-SHEET 1.

M. E. DANIELS.

MILKING MACHINE.

APPLICATION FILED MAY 2z, 190e.

Patented Jan. 5, 1909.

2 SHEETS-SHEET 2.

MONROE H. DANIELS, OF WAVERLY, IOWA.

MILKING-MACHINE.

are. ooe,44e.

Specification of Letters Patent.

Patented Jan. 5, 1909.`

Application led May 22, 1908. Serial No. 434,318.

' Tp all whom it may concern.l

Bc it known that l, MONROE H. DANIELs, a citizen ofthe United States i a resident of TWaverly, Bremer county, Iowa, have invented certain provements vin llilking-Machines, of which the following is a s ecification.

My invention re ates to improvements in milking-machines,.particularly to that form which employs apulsator intermediately be tween the teat-cups and the milk-receptacle, and the objects of my improvements are these: First, to provide an improved form of pulsator constructed for the milking of two cows independentlyof each other. Second, to actuate said pulsat-or by independent mechanical means adapted to exercise suiiicient direct force thereon to prevent cessation of motion thereof on account of adhesiveness under certain conditions of temperature. Third, to furnish an auxiliary device for automatically shutting oli the vacuum-connection at desired times. These objects l have accomplished by the mechanism and means which are hereinafter ully described and claimed, and which are illustrated in the accompanying drawings, in which:

Figure 1 is an elevation of my said improved milking-machine, certain connections being broken away. Fig. 2 is an upper plan of same. Fig. 3 is a vertical section of same taken on the line c b of Fig. 2. Fig. 4 is a horizontal section of the pulsator taken on the line c-d of Fig. 3.

Similar numbers refer to similar parts throughoutl the several views.

The circular plate 23 has a rabbeted edge adapted Yo fit the upper edge of a milk-receptacle 38. The plate 23 is centrally oriiCed, such orifice being interiorly threaded to receive .therethrough an eXteriorly-threade(l bushing or cylinder 14, an annulus 29 integral therewith resting upon the top of said plate. On opposite sides oi the annu-lus 29 are projections 30, such projections and the cylinder being both oriiiced in line from the exterior of the projections to communicate with the inner bore oi the cylinder, and tubes 25 being screwed into said orifices and leading to suitable teat-cups (not shown).

TWithin and fitting the axial bore of the cylinder 14 is a plunger 31 Whose upper end has a flange 12 adapted to contact removably with the u per end of said cylinder. Opposite sides or the plun er 31 have recasses 32 extending most of t e Way from the new anduseful lml ,flower to the upper part thereof. Radial y openings 13 on opposite sides of the cylinder America, and

14 aii'ordrat certain times communication reispectively with the recesses 32 adjacent thereto in theplunger and the atmosphere, while other radial openings 34 near the base of the cylinder afford communication respec tively between such recesses and the interior of a milk receptacle under said plate 23, at certain times.

The projections430 on the cylinder 14 are also perforated vertically intersecting the horizontal channels 33, and in such vertical perforations plungers 16 are respectively seated. Each plunger 16 has a transverse orifice 37 which is adapted to be placed in 0ccasional communication with the transverse channel 33 by means to be hereinafter described. The top of each plunger 16 has a ivotal connection with the inner end of a ever 17 on a pivot-bolt 15.A Each lever 17 is medially pivoted to the top of an upright 21 on a ivot-bolt 13. A weight 22 is seated slidab y and removably on the free outer end of each lever 17, and may be secured in an adjusted position thereon b a set-screw 20, A

cross-bar 35 is remova ly secured to the lower end of each plunger 16 b means of a screw 36, and the ends of suc cross-bars are secured to and support the conical ves sels 27 open at the top and Whose truncated lower ends are sup lied with small drainage tubes 28 respectively.

The numeral 24 designates an electro magnet whose cross-bar 3 has a bail 5 secured thereto by screws 4. The bail 5 is susponded with said magnet from the outer end of a lever 7 which is medially pivoted at 8 on the top of an upright 9. The inner end of said lever is pivoted to a biurcated stud 11 on the top ofthe plunger 3l on a pivot-rod 10. The weight of the suspended electro-magnet 24 is equal to the weight of the plunger 31 and they thus balance each other, except at such times as a current derived from any source of electric power is sent'through said electro-magnet, when the poles of the magnet will be attracted by and will advance toward the plate 23 thus elevating said plunger in its seat. When the current is shut oli, the ymagnet ascends and the plunger falls to its former balanced position. Any desired and suitable means may be employed with which to regularly and successively make and break the circuit through said electro-magnet to l cause the latter to reciprocate and move the plunger up and down past the ports to. vary t the amount of vacuum tension in the machine. Instead of an electrically-controlled means for reciprocating said plunger, however, other suitable means may be employed without departing from the sco e 'of my invention which is the actuatingotthe plunger by means independent of the means used to exhaust the air from the teat-cups of said machine. to prevent sticking of the plunger in its seat, which may easily occur when the parts are moistened with milk under a low temperature. My device is therefore entirely inde- This independent action is necessary,

pendent ol temperature conditions, since as much power may be'applied to the plunger as necessary without regard to the amount of pressure of the vacuum in the machine.

It will be observed that my machine is designed for the milking of two cows simultaneously, without a direct communication from one milk-tube 25 to therother through the plunger'31. Since the regulating means is independent for each cow from the regulating means'for the other cow, a saving of power is effected, since the device is automatically shut off for each cow independentlyv of .the other when all milk has been stripped therefrom. This independently arranged regulating or cut-oil means is described as follows..

i the weight of the vessels 27 to draw down the plungers 16 so that the channels 33 and 37 may register, and such weights not replaced until the said vessels are at least partially lilled with milk from the channels 34. `The Weights'bein replaced, the apparatus is in Working con ition.

When the machine has been thus set to begin milking, the auxiliary means for actuating v the plunger 31 is put in motionto impart to.

said plunger a 'regular and constant reciprocation. As the plunger 31 ascends it cutsl oil the channels 34 before the upper ends of the recesses 32 are placed in communication with the other radial channels 13. While the vacuum is thus preserved in the milk-pail, air under -ordinary atmospheric pressure rushes intothe channels and passages 13, 32,

, 33', 37 and the conduits 25 to the teat-cups,

thus considerably lowering the vacuum pressure inthe teat-cu sv during the short interval -oi' time which e apses while the lunger is being moved up and down past sai channels acacia 13, thus successfully simulating the varying draft of a calis suction. When the plungerV moves down to its first position, the former degree of vacuum is radually restored to the teat-cups. The mil the vessels 27 and overilows thereover into the receptacle below, until one or the other udder is exhausted of milk. When milk ceases to flow into one of the vessels 27, the

Amilk remaining therein slowly drains therefrom by way of the tube 28. When the vessel 27 is emptied, the weight 22 which is setv to overbalance the connectedparts on the other side of the ralorum, causes such parts l including the plunger 16 to ascend to a posi- 80 tion where the channel 33 is cut off -by said plunger from communication with the vacuum-pump as shown in Fig. 3. -Each lunger 16 is thus automatically-actuated inne endently from the other lunger 16, an vacuum-pump is cut-o from the teat-cups where the 'milk has ceased to flow. Thus either side may be shut-oil without interfering with the action of the other, and one cow may be milked alone if desired.

I have constructed my improved machine Ain such a manner that it may be easil flushed when its parts have been separate The plungers l31 and 16 are easily disconnected from the levers7and 17 respectively, 95l

leaving all the cylindrical channels open and free of obstruction for rapid cleansing-- I Having described my invention, what I claim as new, and desire to secure by Letters Patent, is: Q 1. In a milking machine, in combination, a milk-rece tacle, means for exhausting the same, apu sator having an upright valvecylinder which opens at its lower endl into said receptacle, a pu'lsator-valve arranged to move up and down' in said cylinder, and means independent of the said air-exhausting means for moving said valve upwardly. 2k In aimilking machine, in combination, a milk-receptacle, means for exhausting the same, a pulsator having an upright valvecylinder, a pulsator-valve arran ed tomove up or down in said cylinder, sai valve havingseparated recesses on opposite sides, said cy 1 nder having a'channel on each side'in communication between the air-exhausting means and the adjacent recess in said valve, saidcylinder also having channels in communication with the atmosphere and with the interior of said receptacle respectively and each vadapted for occasional communication with the adjacent recess in said valve when the valve is moved longitudinally through said cylinder, and means for `reciproeating said valve in said cylinder.

3. n a milking-machine, in combination a milk-receptacle, means for exhausting t e same, a pulsator having an, upright `valvecylinder, a pulsator-valve arranged to reciprocate in said cylinder, said valve being pro v 1 30 ilows constantly into 70 Athe se acarreo vided with recesses, said cylinder being provided with a milk-port, an air-exhaust port and an air-inlet port, all adapted for occasional communication with said recesses, said air-exhaust port opening into said receptacle, and means inde endent of the said air-exhausting means or causing the' said pulsator-valve to move up or down infsaid cylinder.

4. In a milking-machine, in combination, a milk-receptacle, means for exhausting the same, la pulsator-casing having milk-ports, air-exhaust ports and air-inlet'ports on yopposite sides independent and separated from each other, a pulsator-'valve in said casinghaving a channel on each side separated from each other, each of said channels adapted for occasional communication with the said ports on the same side, means independent of the said f air-exhausting means for moving said valve Yto and fro past said ports, and means inde endent of said air-exhausting means for cosing either of said milk-ports when milk'has ceased to flow therethrough. i

5. In amilking machine, lin combination, a milk-receptacle, means for exhausting the same, a pulsator-cylinder having an air-inlet port, an air-exhaust port and a milk-port, a movable valve in said cylinder having a channel adapted for occasional communication with said air-inlet and said air-exhaustV ports and for permanent communication with said milk-port, a valve adapted to close said milk-port, and means adapted to move said valve to close said milk-port when the milk ceases to flow through said milk-port.

6. In a milking machine, in combination, a milk-receptacle, means for exhausting the same, a pulsator-cylinder having an air-inlet port, an air-exhaust portant-l a milk-port, a

pulsator-valve movable within said cylinder and channeled to communicate with said milk-port permanently and with s aid air-inlet and air-exhaust ports when moved thereover, but such channel being adapted to be .shut oil from either of the latter ports when.

in communication with the other'port, and

, means for moving said pulsator-valve to and fro past said ports. l

7. In a milking machine, in combination,

-a milk-receptacle, means for exhausting the same, a pulsator having an upright cylinder which opens at its lower end into said receptacle, a grooved valve movable up and down in said cylinder, the cylinder having an airinlet and a milk-outlet in occasional communication with a groove in the valve when the latter is moved upbr down, a valve in said milk-port, a perforated vessel in said receptacle connected to the valve in said milkport, removable means for balancing said vessel when empty to poise-it in position to cause said valve to shut olf said milk-port,

said vessel being located suitably in said re- 'the other side an ceptacle toA receive the entering milk and discharge the milk received therein'through its said perforation more slowly than it is received, and means Afor moving said pulsatorvalve up or down. I

8. In a milking machine, in combination, a milk-receptacle, means for exhausting the same, a'pulsator-cylinder having a mill port, an`A air-inlet port and an air-exhaust port, the air-eXhaust-port being in occasional communication with said receptacle, a movable valve in said cylinder having a channel adapted for occasional separated communication with said air-inlet and said air-exhaust port and for permanent communication with said milk-port, a valve-chamber intersecting said milk-port, 'a movable valve in sai valve-chamber adapted to shut oil said milkport when moved upwardly, an open vessel in said receptacle perforated at the base suspended from said cut-off valve, the perforation in said vessel being adapted to discharge milk received from said milk-port less rapidly than ,such milk is received from the ort, a pivoted lever having a removable sli able weight on its free end adapted to bala-nce the weight of said vessel, the other member olJ Y said lever being pivotally connected to said cut-off valve, and means for causin, a regular reciprocation of said pulsator-va ve.

9. In a milking machine', in combination, a milk-receptacle, means for exhausting Vthe same, a pulsator-cylinder opening into the milk-receptacle, said cylinder being provided on each side with an air-inlet port, an air-exhaust port and a milk-port, the said ports on' one side being se arated from the ports on (I independent therefrom, a pulsator-valve movable up and down in said cylinder and provided with a longitudinal channel on each side in line with the said ports on each side and adapted when moved up and down to cause occasional communication between each channel andthe air-inlet and air-exhaust ports on the same side, but

sator-valve upward to returnV by gravity, a

plunger-valve intersecting each of said' milkports, said valve having a transverse channel adapted to register with said milk-port when the valve is at its lower position, and said valve being adapted to cut ofi said milk port when in its upper position, a vessell in said mil k-receptacle suspended from each lungervalve and adapted to receive milk igomlthe milk-port thereabove and discharge' it .inlo said receptacle, each vessel having a milkeXit adapted to discharge the milk there through more slowly vthan such milk is des posited in' the vessel, and balancing-means' connected with each of said vessels and valves adapted to cause the vessels to rise magnet to ivhich said ma net may be drawn 15 when em tied of milk to cause the valves to shut oil t e milk ports.

10. In e milking machine, in combination, e milk-receptacle, vmeans for' exhausting seme, a pulsetor-e'ylinder opening into s aid milkreceptacle, a. pulsator-valve adapted to move up and down in said cylinder, a; pivoted lever having one member pivoted to said pulsator-valv`e at the top, an electro-magnet suspended from the other member of said lever to balance Saidv'elve and being in circuit with some source of electrical power, e fixed armature opposite the poles `of said electro- When the circuit is comp eted through it to lift said valve, and a circuit-interrupter adapted to regularly and periodically interrupt seid circuitv to cause said magnet to move to its balanced positionancl thus reciprecate the pulsator-valve.

Signed at Waverly, Iowa, this 6 day of Mey, 1908.

MONROE H. DANIELS.

Witnesses W. H. PooKELs, W. SCHLATERG. 

